Thermostatic valve device



'Jam 1, 1935v E. MAYO THERMOSTATIC VALVE DEVICE Filed Oct. 6, 1934 75 177,155 M 1 \&

INVENTOR. fdwara L Maya BY ATTORNEY.

- 25 Another object. of my invention is to provide operates with a valve generally indicated at? to .25

P anos) 1, 1935 2 5- UNITED STATES Piusm mummified Davida 4 Edward Levy Mayo, Cleveland, Ohio, my to The Bishop 4: Babcock Mfg. Company, Cleveland, Ohio, a corporation of Ohio Application 0mm 6, 1934, semi! at. 141,221 4 (01. 230-34 My invention relates to thermostatic valve ably inclined upper end adapted to be telescoped mechanisms, and particularly to mechanisms of within and sealingly secured to a flexible coutype especially adapted to-eflect the circulapling interconnecting the conduit 2 with the conon of water or other fluid cooling mediums ventional cooling radiator of the vehicle. 5 through the cooling system of an internal com- The discharge conduit 2 isprovided with a gen-' 5 bustion engine, although being not limited erally laterally extending bypass discharge conthereto. duit 3 preferably formed integrally therewith An object of my invention is'to provide an imwhereby varying amounts of cooling fluid may be proved thermostatic valve mechanism of simplidiverted through the bypass conduit 3 and refled construction, and which is relatively economdirected to the cooling jacket of the. engine with- 10 ical of manufacture and assembly. out traversing the cooling radiator'in a'manner Another object of my invention is to provide later tobe described. I an improved the ostatic valve mechanism, the The conduit-'2 is provided at its lower end with parts of which are generally susceptible of being an outwardly and laterally extending flange 4 per formed by relatively inexpensive stamping and forated at spaced points whereby the conduit may 15 machine screw operationsto provide a light, lowbe sealin ly secured to the head 1 by means of cost mechanism which is durable and efflcient in bolts 5 projected through the-flange perforations operation. *and ,threadedly engaging the head. A sealing Another object of my invention is to provide washer, formed of any suitable material, is prefan improved .thermostatic valve mechanism 'parerably disposed intermediate the head 1 and 20 j ticularly adapted for the cooling system of in-' flange 4 of con uit 2.-; The upper face of head 1 ternal combustion engines for automotive ve-- is provided with an annular recess surrounding I hicles and which may be easily and economically the outlet th rethrough forming a seat for a transinstalled in the cooling system of such vehicles. versely disposedported valve element 6 which 00- an improved thermostatic valve mechanism of control the flow of cooling fluid through the conthe bypass type, whereby in addition to a therduit 2. mostatic control of the circulatory cooling fluid The element 6 forms a support for a generally for an internal combustion engine coolingsyscup-shaped preferably sheet metal stamping pro- 80 'tem which includes a cooling radiator, a control vided with upwardly'extending spaced arms 8 teris effected over a bypass circuit for the, cooling minating at their. upper ends in an outwardly fluid to effect a more eflicient operation of the extending radial flange 10, the flange 10 prefersaid engine. v ably being reinforced by having the peripheral Another object of my invention is to provide portions thereof reversely folded and secured to ll an improved thermostatic valve device for the the element 6 by flanging the peripheral portions cooling system of internal combustion engines for thereofin'wardiy as indicated at 9. The flange automobiles wherein improved guide means for ,portion of element 6 will thus be sealingly secured the movable valve parts are provided. intermediate the lower face of the sealing washer Other objects of my invention and the invenand thebase of the annular seat provided in the 4. tion itself will become increasingly apparent from head 1 due to the pressure exerted by the securing 40 a consideration of the following description and" bolts 5. V drawing, wherein: j The lower ends of the arms areintegral with Fig. 1 is a vertical medial sectional view of a a generally circular plate 11 centrally perforated preferred embodiment ofmyinvention disposedin and having a collar 13 secured thereto in any 6 the cooling system of an internal combustion suitable manner as byprojecting a reduced por- 4 v engine for automobiles. tion of collar 13 through the perforated portion of Referring now to the drawing, I have indiplate 11 and flaring the same'outwardly to interoated at 1 the head forming a closure unit for lock the plate and collar." The collar 13 is prothe cooling water jacket encasing the cylinders vided with an enlarged head adapted to have a of an internal combustion engine for an automosheet metal or the like circular base aflixed 66 bile, and which is provided with a cooling water thereto by crimping a central portion of the base 7 outlet port adapted to discharge fl'uid heated over the enlarged portionof the collar head. .The through contact with the cylinder walls into a base 12 will thus bemaintained in flxed position conduit 2. The conduit 2 is generally tubular and is connected by means of a corrugated flexin form having a relatively reduced and preferible tube iito a movable head similar in construc- 55 ri en to the flxed base 12 and which'head is A sleeve is provided with mammals thread-1 red portion engages the element 15 and-may be '2 leading to the cooling radiator, and-the'entire' 7 cooling radiator; and raising of the tube 21 with-; in the enlarged portion 22 of the bypass dis-. f" charge conduit will relatively restrict flow there-,-

. the cooling fluid incontact with moved axially relative theretojior a purpose later to .be described.

The ported element 6 has, its central portion stamped in the form of a indicated at '29' and-form'ing a guiding-support for sleeve 16. The upper end of-sleeve 16 is rigid- 1y secured to upwardly and outwardly extending spaced arms 19 inany suitable-manner as by relatively reducing said end to' form a seat for a circular flange linking the lowernends of arms 19 and flaring outwardly a portionof the sleeve projected therethrough.- r

The upper. ends of arms 19 -.ai secured to a radially outwardly-extending flange 20'of an axially disposed sleeve 21. in'.ar y suitable manner as by projecting the upper .ends of the arms through spaced perforated 'p'ortions of the flange and bending said portions to interlock the flange therebetween. The inner end of the bypass discharge conduit 3 is relatively enlarged as indicated at 22 and the lower portion/ is provided with an opening 23 coaxially disposed relative to sleeve 21 and adapted to provide a sliding flt therewith. The

, upper end of sleeve 23 is beveled upwardly inwardly as indicated at 24 whereby it may be more easily centered in opening 23 and also more.

accurately seats within a recessed portion 27 provided at the upper inner face D rtion22 of the bypass conduit 3,

The operation of the valve mechanism as follows: Assuming the motor to be relatively e001,.

thereof will alsobe relatively cool, and upon starting the, motor and when it is desired that the- 1 samelwarm up quickly, the bellows element imp mersed in the cooling fluid willtbe andthemovable head thereof will be in thepoe sition indicated in Fig. 1 whereby the flange 20 will seat uponthe ported valve element ,8 prohibiting flow throughthe discharge conduit flow will be directed intermediate arms 18 and 19 through tube 21 and bypass dischargeconduit 3'and thence returned tothe "engine jacket with-. out traversing the radiator.

The engine willthus quickly-warm up co quently. raising the temperature. of the cooling fluid and expanding the bellows element under the influence of the heat-responsive volatile liq- -uid, relatively raising the movableheadthereof, flange 20 secured in 'flxed'relationto-said head, and tube-21. Raising of the flange 2,0 willperm'it a portion of the fluid flow to'be-directedthroughthe discharge conduit 2 and thence through the through whereby a-portion of thecooling fluid perature.

spider providing rad'ially inwardly and axiallydownwardly exte'nding arms 19 integral with an annular ring 28'provided i Y'- with an :axially upwardly extending shoulder flared'rjradially .o'utwardly.'at the upper ends as reverse will be true when the p .be installed as a unit adapted for operation with of'the enlarged;

" tion cooperating with .the byvalve of the device.

, H 1 .Although I have shown and described a prethe cylinders *ferred embodiment of my invention, I conten may be made therefrom without departing from appended claims. 1

thereof, and a bellow Continued warming of the motor and the cooling fluid will progressively raise the flange 20 and close the flow through the bypass conduit until 5 I such time that the portion' 24 of tube 21 sealingly abuts the recessed portion 27 of the bypass conduit 3, shutting off flow through the bypass conduit, and the entire-flow will then be directed through the conduit 2 and the cooling radiator.

Upon a relative coolingof the fluid, the reverse operation will occur and the engine will thus be maintained at a desired eflicient operating tem- The direction of fluid flow intermediate the ported valve element 6 and .its cooperating valve flange 20 is indicated at 25 and the flow of cooling fluid intermediate the longitudinally extending arms 8 and upwardly through the discharge conduit and by-pass conduit is indicated by arrows 30. v

The temperature at which the valve controlling flow through the discharge conduit 2 will open and the temperature at which the flow through the by-pass conduit will be cut oil may as be controlled by altering the axial distance of themovable head of the thermostatic bellows through rotation of the sleeve 16 threadedly engaging the upstanding externally threaded portion of the movable head. Increasing the axial to distance in this manner between the valve flange 20 and the movable head insures that the'initiation of flow through the discharge conduit 2 will be at a relatively lower temperature, and the flow through the .by-pass conduit 3 will be. cut II 011 at a relatively lower temperature; and the aforementioned axial distance is decreased. f

The valve mechanism described is supported intermediate the conventional jacket head for theengineand a discharge conduit therefor whereby itmay be easily inserted within and removed from the'circulatory system and may discharge conduit having a by-passing porplate' that numerous and extensive departures the-spirit of my invention and the scope of the -I claim: I 1. In a nit ry Irv-pass ype in. a frame comprising a transversely wall, a valve comprisinglatube a lateral flange normally seated on laid I wall at its discharge side to prevent 4 main flow said valve normally covering substantiallythe entire area of s'aid'wall-porh-sald valve unitarily movable axially of its tube per-- :i to v e late lly of the tube, said tube conducting llyeire'ct increased flow flow from themecbanism' and having an en valvportion adaptedwhen movedto variably restrict the flow therethrough. said-frame comprising a journal-extension for guiding said eating. lateral movements 7' tube axially and prev I ,therlnostat for efl'ecting axial'adiusting movements to the valve, said thermostat carried by said frame on theapproach of said wall, saidflange being sosubiected to pressure of fluid on its approach side as to tend thermostatic valve I6 prising an extension safety position effecting a substan glue to and around the coolin radiator there-i for, a valve comprising a tube havin a lateral flange for conducting the by-pass mechanism,

extending ported wall, a bellows thermostat cardisposed ried by the frame of said wall, a stem for commimicating valve adjusting movements eifected by the thermoaat to axi l ad ust the valve to seat its flange on the wall over its port or variably space it on its dischar e sideand also to axially adjust the tube to variably restrict the flow through the tube, said flange when moved from said wall effecting an increased main discharging flow from the mechanism laterally of the tube, said frame comproviding a guidingiourml for the movable parts of the m prevent lateral movements thereof, said annulus being so subjected to pressure of fluid on its-appreach side as'to tend to move it to an operative tial main flow. 3. In a thermostatic valve mechanism of the type adapted to control the flow of engine radial flange unitarily thermostat supvalve element to element radial flow from the mat-ube single valve element in move it to diiferently adjusted positions whereby said valve flange will approach' the portof spaced therefrom at the discharge side thereof, said valv stem. and thermostat end comprising the moving system of the mechanism. said moving system being iournalled in an extension of said frame to effect axially directed movements of adapted to conduct said by-passed flow from the mechanism and having a valve portion axially movable to variably restrict said flow, said valve radial flange adapted to be seated on said ported mechanism laterally 15 discharge conduit in progressively increased volume according to adjustably increased spacing of said radial flange from said wall.

4. In a unitary by-pass type thermostatic valve mechanism, a frame comprising a transversely extending ported wall, valve means comprising and a flattened laterally extending anthe tube said annulus no edge portion on the discharge side, of said wall and having its other portions so disposed as to bridge'the space between said tube and the radially outer borders of said wallport, said tube conducting by-passing flow from bellows thermostat for effecting axial adjusting movements to said annulus to variably space it from its seat at the discharge side thereof to effect a valve opening between its peripheral edges and its seat to effects controlled flow there ough laterally of said tube, said frame supporting said thermostat on the approach side of said wall and comprising a'iournal extension for guiding the movements of said annulus in axial directions only and preventing-movements thereof in lateral direction, said thermostatalso effective to variably control nulus encircling seated by an outer the byassing flow through the tube in an opposite manner to the control exercised thereby over said main flow through the instrumentallty of said annulus.

the valve, said valve tube 6 E nwsrm LEVY MAYO. 

